SaplingVerificationContext

sapling_crypto

Struct SaplingVerificationContext 

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pub struct SaplingVerificationContext { /* private fields */ }
Available on crate feature circuit only.
Expand description

A context object for verifying the Sapling components of a single Zcash transaction.

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impl SaplingVerificationContext

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pub fn new() -> Self

Construct a new context to be used with a single transaction.

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pub fn check_spend( &mut self, cv: &ValueCommitment, anchor: Scalar, nullifier: &[u8; 32], rk: VerificationKey<SpendAuth>, sighash_value: &[u8; 32], spend_auth_sig: Signature<SpendAuth>, zkproof: Proof<Bls12>, verifying_key: &PreparedSpendVerifyingKey, ) -> bool

Perform consensus checks on a Sapling SpendDescription, while accumulating its value commitment inside the context for later use.

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pub fn check_output( &mut self, cv: &ValueCommitment, cmu: ExtractedNoteCommitment, epk: ExtendedPoint, zkproof: Proof<Bls12>, verifying_key: &PreparedOutputVerifyingKey, ) -> bool

Perform consensus checks on a Sapling OutputDescription, while accumulating its value commitment inside the context for later use.

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pub fn final_check<V: Into<i64>>( &self, value_balance: V, sighash_value: &[u8; 32], binding_sig: Signature<Binding>, ) -> bool

Perform consensus checks on the valueBalance and bindingSig parts of a Sapling transaction. All SpendDescriptions and OutputDescriptions must have been checked before calling this function.

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